Regulation of cohesin-mediated chromosome folding by PDS5 in mammals

Yu, Dingdang1,2; Chen, Guoyu3,4; Wang, Yuci2; Wang, Yining5; Lin, Risheng2; Liu, Nanbo6,7; Zhu, Ping6,7; Liu, Hang1; Hu, Tao1; Feng, Rui2; Feng, Haizhong3,4; Lan, Fei1,5; Cai, Jiabin1,5; Chen, Hao2

2022-09-01

10.15252/embr.202254853

EMBO REPORTS   Impact Factor & Quartile

1469-221X

1469-3178

Cohesin regulates sister chromatid cohesion but also contributes to chromosome folding by promoting the formation of chromatin loops, a process mediated by loop extrusion. Although PDS5 regulates cohesin dynamics on chromatin, the exact function of PDS5 in cohesin-mediated chromatin looping remains unclear. Two paralogs of PDS5 exist in vertebrates, PDS5A and PDS5B. Here we show that PDS5A and PDS5B co-localize with RAD21 and CTCF at loop anchors. Rapid PDS5A or PDS5B degradation in liver cancer cells using an inducible degron system reduces chromatin loops and increases loop size. RAD21 enrichment at loop anchors is decreased upon depletion of PDS5A or PDS5B. PDS5B loss also reduces CTCF signals at loop anchors and has a stronger effect on loop enlargement compared with PDS5A. Co-depletion of PDS5A and PDS5B reduces RAD21 levels at loop anchors although the amount of cohesin on chromatin is increased. Our study provides insight into how PDS5 proteins regulate cohesin-mediated chromatin looping.

chromatin loop cohesin CTCF loop extrusion PDS5

SCI

English

Corresponding

National Natural Science Foundation of China[32170604] ; National Key Research and Development Program of China[2018YFA0108700]

Biochemistry & Molecular Biology ; Cell Biology

Biochemistry & Molecular Biology ; Cell Biology

WOS:000855896500001

WILEY

MOLECULAR BIOLOGY & GENETICS

Web of Science

1.Fudan Univ, Inst Biomed Sci, Key Lab Med Epigenet & Metab, Shanghai, Peoples R China
2.Southern Univ Sci & Technol, Sch Med, Dept Human Cell Biol & Genet, Shenzhen, Peoples R China
3.Renji Hosp, Shanghai Canc Inst, State Key Lab Oncogenes & Related Genes, Shanghai, Peoples R China
4.Shanghai Jiao Tong Univ, Ren Ji Hosp, Renji Med X Clin Stem Cell Res Ctr, Sch Med, Shanghai, Peoples R China
5.Fudan Univ, Zhongshan Hosp, Liver Canc Inst, Minist Educ,Key Lab Carcinogenesis & Canc Invas, Shanghai, Peoples R China
6.Guangdong Acad Med Sci, Guangdong Prov Peoples Hosp, Guangdong Cardiovasc Inst, Dept Cardiac Surg, Guangzhou, Peoples R China
7.Guangdong Acad Med Sci, Guangdong Prov Peoples Hosp, Guangdong Cardiovasc Inst, Dept Med Sci, Guangzhou, Peoples R China

Yu, Dingdang,Chen, Guoyu,Wang, Yuci,et al. Regulation of cohesin-mediated chromosome folding by PDS5 in mammals[J]. EMBO REPORTS,2022.

Yu, Dingdang.,Chen, Guoyu.,Wang, Yuci.,Wang, Yining.,Lin, Risheng.,...&Chen, Hao.(2022).Regulation of cohesin-mediated chromosome folding by PDS5 in mammals.EMBO REPORTS.

Yu, Dingdang,et al."Regulation of cohesin-mediated chromosome folding by PDS5 in mammals".EMBO REPORTS (2022).